9NEWS reporter ambushed by live cross flasher

Rabbitohs fans are entitled to be happy after South Sydney ended its 43-year premiership drought, but one scantily-clad fan showed it's possible to have too much of a good time.

9NEWS reporter Tom Steinfort was broadcasting live from outside Redfern's Woolpack Hotel on Chalmers Street, where a crowd of Bunnies fans had gathered to continue their celebrations.

As the live cross continued and the fans got rowdier, one man dropped his pants in front of the camera.

Tom Steinfort was doing a live cross with some Rabbitohs fans outside a Redfern pub. ()A man in the crowd caused a stir when he decided to get pantsless for the camera. ()Other fans mobbed the news crew, mercifully denying the flasher any more exposure. ()

Other fans swarmed forward towards the news crew, soon blocking the view of the half-nude reveller.

Mr Steinfort said he wasn't aware of the enthusiastic flasher until after the camera was off.